Last modified: 2008-01-09 01:25:14 UTC
See: http://en.wikipedia.org/wiki/Nazareth Notice the stray apostrophe underneath the image in the infobox on the right. The template in question is: http://en.wikipedia.org/wiki/Template:Infobox_Israel_muni I've experimented with it a bit and it seems that the apostrophe is generated by this line: {{!}} style="vertical-align: middle; {{#if:{{{image2|}}}|padding-right:3px}}" align="center" {{!}} [[Image:{{{image<noinclude>{{!}}Placeholder.png</noinclude>}}}{{#if:{{{imgsize|}}}|{{!}}{{{imgsize}}}px}}<noinclude>{{!}}230px</noinclude>]]<br />''{{{caption| }}}'' The code -> ''{{{caption| }}}'' <- appears to be rendered as an apostrophe if an image but no caption is given. If no image is given, or a caption is given, or both, the bug does not occur.
In the template invocation, you had caption set to an empty string, it wasn't missing altogether. Thus ''{{caption| }}'' was expanded to '''', not '' ''. '''' is interpreted as an apostrophe plus a switch to bold. There are many possible fixes for this, and I have implemented one of them in the template. Not a MediaWiki bug: {{test|x=}} will cause {{{x|default}}} to give an empty string, not "default". This is appropriate and stable behaviour.